EBK INTRODUCTORY CIRCUIT ANALYSIS
13th Edition
ISBN: 8220100668234
Author: Boylestad
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 10P
- What is the cross-sectional area in circular mile of a rectangular copper bus bar if the dimensions are 3/8 in. by 4.8 in?
- If the area of the wire commonly used in house wiring has a diameter close to 1/12 in., how many wires would have to be combined to have the same area?
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Chapter 3 Solutions
EBK INTRODUCTORY CIRCUIT ANALYSIS
Ch. 3 - Convert the following to mils: 0.2Â in. 1/32Â in....Ch. 3 - Calculate the area in circular mils (CM) of wires...Ch. 3 - Prob. 3PCh. 3 - What is the resistance of a copper wire 200 ft...Ch. 3 - What is the area in circular mils of an aluminum...Ch. 3 - A 2.2 resistor is to be made of nichrome wire. If...Ch. 3 - What is the diameter in inches of a copper wire...Ch. 3 - A wire 1000 ft long has a resistance of 0.5 and an...Ch. 3 - A contractor is concerned about the length of...Ch. 3 - What is the cross-sectional area in circular mile...
Ch. 3 - Prob. 11PCh. 3 - Determine the increase in resistance of a copper...Ch. 3 - What is the new resistance level of a copper wire...Ch. 3 - In construction the two most common wires employed...Ch. 3 - Compare the area of a #12 wire with the area of a...Ch. 3 - Compare the area of a #20 hookup wire to a #10...Ch. 3 - For the system in Fig. 3.46, the resistance of...Ch. 3 - From Table 3.2, determine the maximum permissible...Ch. 3 - The resistance of a copper wire is 2 at room...Ch. 3 - The resistance of an aluminum bus-bar is 0.02 at...Ch. 3 - The resistance of a copper wire is 1.2 at room...Ch. 3 - The resistance of a copper wire is 25m at a...Ch. 3 - The resistance of a copper wire is 1 at 20C (room...Ch. 3 - If the resistance of 1000 ft of wire is about 1 at...Ch. 3 - Verify the value of 20 for copper in Table 3.4 by...Ch. 3 - Prob. 26PCh. 3 - Prob. 27PCh. 3 - A 22 wire-wound resistor is rated at +200PPM for a...Ch. 3 - A 100 wire-wound resistor is rated at +100PPM for...Ch. 3 - What is the approximate increase in size from a 1...Ch. 3 - If the resistance between the outside terminals of...Ch. 3 - If the wiper arm of a linear potentiometer is...Ch. 3 - Show the connections required to establish 4k...Ch. 3 - Find the range in which a resistor having the...Ch. 3 - Find the color code for the following 10%...Ch. 3 - Is there an overlap in coverage between 20...Ch. 3 - Given a resistor coded yellow, violet, brown,...Ch. 3 - How would Fig. 3.26(a) change if the resistors of...Ch. 3 - Find the value of the following surface mount...Ch. 3 - Find the conductance of each of the following...Ch. 3 - Find the conductance of 1000 ft of #12 AWG wire...Ch. 3 - Find the conductance of a 10,20 and 100 resistor...Ch. 3 - The conductance of a wire is 100 S. If the area of...Ch. 3 - Why do you never apply an ohmmeter to a live...Ch. 3 - How would you check the status of a fuse with an...Ch. 3 - How would you determine the on and off states of a...Ch. 3 - How would you use an ohmmeter to check the status...Ch. 3 - Using metric units, determine the length of a...Ch. 3 - Repeat Problem 11 using metric units; that is,...Ch. 3 - If the sheet resistance of a tin oxide sample is...Ch. 3 - Determine the width of a carbon resistor having a...Ch. 3 - Derive the conversion factor between (CM-/ft) and...Ch. 3 - In your own words, review what you have learned...Ch. 3 - Visit your local library and find a table listing...Ch. 3 - Find at least one article on the application of...Ch. 3 - Using the required 1MA/cm2 density level for...Ch. 3 - Research the SQUID magnetic field detector and...Ch. 3 - Find the resistance of the thermistor having the...Ch. 3 - Using the characteristics of Fig. 3.38, determine...Ch. 3 - Referring to Fig. 3.40(a), find the terminal...
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- An aluminum transmission line is to be replaced by copper having the same total resistance. If thecross-sectional area of the aluminum wire is 820 MCM, what would be the cross-sectional area of thecopper wire ? Given : Resistivity of aluminum = 17 Ω-CM per ft,Resistivity of copper = 10.37 Ω-CM per ft ( ANS ≈ 500 ??? )arrow_forwardCompute for the resistance of (i) silver, (ii) copper, and (iii) aluminum wire using these Equations in the given. For the three wires, the length is 2 meters, the diameter is 1 millimeter, and the temperature is at 27◦C.arrow_forwardAn aluminum bus bar conductor is 25 inches long, 6 inches width and 0.14 inches thick. If the resistivity of the conductor is 17 ohm-CM/ft. Determine the resistance of the conductor.arrow_forward
- What is the resistance of a hard drawn copper wire that has a length of 500 m and a diameter of 0.404 mm? Each of the 19 strands of a copper cable has a diameter of 59 mils. Calculate the resistance of a mile of such cable at a temperature of 20°C.arrow_forwardUsing the given particulars, calculate the resistances of the following conductors at . Material – Copper-Annealed, Length- 1000 ft., CM – 3220 circular mils.arrow_forwardFind the cross-sectional area in the circular mils of 37 wires that is 104 mils in diameter each.arrow_forward
- The rate of change in resistance of a conductive wire ( ) with respect to its temperature ( ), is found to be equal to the product of the temperature coefficient of resistance ( ) and the resistance at that temperature. If the variation of the resistance is continuous with respect to the temperature,arrow_forwardAn aluminum wire replaces a copper wire with the same value of resistance. If the crosssectional area of the copper wire is 500 CM, find the cross sectional area of the aluminumwire in SM.arrow_forwardA telephone line (cable) stretches between two points which are 150 ft apart and at the same elevation. The line sags 5 ft and the cable has a weight of 0.3 lb/ft. Determine the length of the cable and the maximum tension in the cable.arrow_forward
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